JHS graduations are coming up soon .. I'll bet it was some kids from the graduating class just trying to cause trouble. I have heard stories of teachers sleeping on school premises the night before graduation to keep kids from trashing the gym overnight.

It is very much a society in which you reap what you sow: by putting in the effort, you are recognized by those around you, which in turn encourages further individual growth. It is perhaps this social bond of solidarity that helped many a Japanese person overcome the devastation of the most recent great earthquake, where through the help and kindness of those around them many were able to rebuild, to some degree, their previous lives.